Function write_json 

pub fn write_json<W: Write, T: Serialize>(rows: &[T], w: &mut W) -> Result<()>

Generic JSON emitter. Serialises any serde::Serialize slice as a pretty-printed JSON array. The pretty form matches the historic shape from the pre-shim era; downstream consumers that expect stream-parseable single-row-per-line semantics should use --format ndjson instead.

Errors

Returns crate::CodeLoreError::Io when the output sink fails mid-write (e.g. a reader closed the pipe early) and crate::CodeLoreError::Output on a genuine serialisation fault.